Rovio is celebrating the Angry Birds second birthday with the release of their updated version of Angry Birds. The update, available now in the Android Market, brings 15 new cake-inspired levels to the mix bringing the grand total of Angry Birds levels to 300! They managed to input some goodies as well for fans:

Party with the amazing expandable orange bird!

Check out the spiffy new menus and graphics!

Special birthday achievements make this update a treat!

As a birthday gift to our fans, all episodes are now unlocked!

Happy Birthday Angry Birds and thanks for the great update. Hit the break for the download, folks.